powerpc: move iSeries/iSeries_pci.h to platforms/iseries

The only real user of this file outside platforms/iseries was
drivers/net/iseries_veth.c but all it wanted was ISERIES_HV_ADDR()
so we move that to abs_addr.h (and lowercase it).

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
diff --git a/include/asm-ppc64/abs_addr.h b/include/asm-ppc64/abs_addr.h
index 84c24d4..dc3fc3f 100644
--- a/include/asm-ppc64/abs_addr.h
+++ b/include/asm-ppc64/abs_addr.h
@@ -63,4 +63,11 @@
 #define virt_to_abs(va) phys_to_abs(__pa(va))
 #define abs_to_virt(aa) __va(aa)
 
+/*
+ * Converts Virtual Address to Real Address for
+ * Legacy iSeries Hypervisor calls
+ */
+#define iseries_hv_addr(virtaddr)	\
+	(0x8000000000000000 | virt_to_abs(virtaddr))
+
 #endif /* _ABS_ADDR_H */